9p: Constify static struct v9fs_attr_group

The only usage of v9fs_attr_group is to pass its address to
sysfs_create_group() and sysfs_create_group(), both which takes pointers
to const struct attribute_group. Make it const to allow the compiler to
put it in read-only memory.

Link: http://lkml.kernel.org/r/20210108224650.25872-1-rikard.falkeborn@gmail.com
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>

diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index 39def020a074b7fab442f60216916ae3c3ac6a7b..cdb99507ef33d6e2c6e358d28ce2859260684506 100644 (file)
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -583,7 +583,7 @@ static struct attribute *v9fs_attrs[] = {
        NULL,
 };
 
-static struct attribute_group v9fs_attr_group = {
+static const struct attribute_group v9fs_attr_group = {
        .attrs = v9fs_attrs,
 };